Displaying 4 results from an estimated 4 matches for "st12".
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st1
2007 Oct 29
3
using survfit
...r graphs.for example
n=20
n1=n/2
n2=n/4
a11=4;a12=4 ;a21=4 ;a22=4
t1<-array(1,c(n1))
t2<-array(2,c(n1))
treatgrp=matrix(c(t1,t2))
st11<-array(1,c(n2))
st12<-array(2,c(n2))
st21<-array(1,c(n2))
st22<-array(2,c(n2))
strata=matrix(c(st11,st12,st21,st22))
time11=array(rweibull(n2,a11,1))
time12=array(rweibull(n2,a11,1))
time21=array(rweibull(n2,a21,1))
time22=array(rweibull(n2,a22,1))...
2007 Oct 18
1
programming question
...porblem.
n=20
n1=n/2
n2=n/4
a11=1 ;a12=1.4 ;a21=16 ;a22=a12 * a21
t1<-array(1,c(n1))
t2<-array(2,c(n1))
treatgrp=matrix(c(t1,t2))
st11<-array(1,c(n2))
st12<-array(2,c(n2))
st21<-array(1,c(n2))
st22<-array(2,c(n2))
strata=matrix(c(st11,st12,st21,st22))
time11=array(rweibull(n2,a11,1))
time12=array(rweibull(n2,a12,1))
time21=array(rweibull(n2,a21,1))
time22=array(rweibull(n2,a22,1))...
2007 Oct 19
0
calculating power of log rank test
...n1=n/2
n2=n/4
a11=1 ;a12=1.4 ;a21=16 ;a22=a12 * a21
t1<-array(1,c(n1))
t2<-array(2,c(n1))
treatgrp=matrix(c(t1,t2))
st11<-array(1,c(n2))
st12<-array(2,c(n2))
st21<-array(1,c(n2))
st22<-array(2,c(n2))
strata=matrix(c(st11,st12,st21,st22))
time11=array(rweibull(n2,a11,1))
time12=array(rweibull(n2,a12,1))
time21=array(rweibull(n2,a21,1))
time22...
2008 Feb 14
0
help in simplyfiying programme
...0;count33=0;count44=0;count55=0;count66=0;count77=0;
count88=0;count99=0;
while(s!=0){
n=100
n1=n/2
n2=n/4
t1<-array(1,c(n1))
t2<-array(2,c(n1))
treatgrp=matrix(c(t1,t2))
st11<-array(1,c(n2))
st12<-array(2,c(n2))
st21<-array(1,c(n2))
st22<-array(2,c(n2))
strata=matrix(c(st11,st12,st21,st22))
time11=array(rweibull(20,1,1/12))
time12=array(rweibull(20,1,1/12))
time21=array(rweibull(30,1,0.25))
time22=array(rweibull(30,1,0.25))
time=matrix(c(time11, time...